Compared with common single mode fiber, the small core PCF has higher non-linear coefficient and larger Brillouin gain, and is suitable for the gain medium of Brillouin fiber laser.
与普通单模光纤相比，小纤芯pcf具有非线性效应强、布里渊增益大的特点，适合作为布里渊光纤激光器的增益介质。
The inhomogeneous distribution of gain coefficient is inevitable because of the inhomogeneous distribution of pump light intensity in laser medium.
这样光强分布的不均匀必然导致增益分布的不均匀，因此，在考虑自再现模时有考虑增益系数分布状态的必要。
The inhomogeneous distribution of gain coefficient is inevitable because of the inhomogeneous distribution of pump light intensity in laser medium.
这样光强分布的不均匀必然导致增益分布的不均匀，因此，在考虑自再现模时有考虑增益系数分布状态的必要。
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